Awxlumv vs SGTKJSJS: Heatsinks Compared by Specs
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You are looking at the awxlumv vs SGTKJSJS heatsink comparison to find the right passive cooling solution. Both products remove heat without fans, but they target different components. The Awxlumv unit is a general-purpose aluminum block for chips and motors. The SGTKJSJS model is a specialized copper pad for M.2 SSDs. You need to match the material and shape to your specific device for effective thermal management.
Key differences
| Aspect | Awxlumv 40mm Anodized Aluminum Heatsink 4-Pack | SGTKJSJS Copper M.2 2280 Laptop Heatsink |
|---|---|---|
| Material | Anodized aluminum | 100% copper |
| Compatible Device | IC chips, NEMA17 motors | M.2 2280 SSDs |
| Dimensions | 40 x 40 x 20mm | 22 x 76mm (approx) |
| Mounting Hardware | Thermal adhesive (not included) | Rubber ring, insulation sticker, thermal pads |
| Package Count | 4 pieces | 2 pieces |
Which one should you choose?
Choose Awxlumv 40mm Anodized Aluminum Heatsink 4-Pack if
- You need to cool stepper motors or voltage regulators on a 3D printer.
- You require a larger surface area for passive cooling of discrete IC chips.
- You are building a custom setup and already have thermal adhesive ready.
Choose SGTKJSJS Copper M.2 2280 Laptop Heatsink if
- You are installing an NVMe SSD in a laptop with limited height clearance.
- You want a solution that includes thermal pads for uneven surface contact.
- You prefer copper for its higher thermal conductivity in compact spaces.
Verdict: The Awxlumv heatsink is the practical choice for general electronics and 3D printer components. The SGTKJSJS heatsink is the correct fit for laptops and M.2 SSDs requiring low-profile copper cooling. Select the product that matches your specific hardware interface.
Heatsink Specs Compared Side by Side
Material and Build
The Awxlumv heatsink is constructed from anodized aluminum. This material is lightweight and offers good thermal conductivity for general electronics. The surface is smooth, with no burrs or scratches, ensuring flat contact with the heat source. In contrast, the SGTKJSJS heatsink is made from 100% copper. Copper has higher thermal conductivity than aluminum, which helps it absorb and dissipate heat more rapidly. This makes the copper unit more effective for components that generate significant heat, such as NVMe SSDs. The choice between aluminum and copper depends on your specific cooling needs and weight constraints.
Compatible Device
These two products target completely different hardware. The Awxlumv heatsink is designed for passive cooling of electronic IC chips, NEMA17 stepper motors in 3D printers, and various power devices. It is a general-purpose block suitable for many applications. The SGTKJSJS heatsink is specifically engineered for M.2 2280 SSDs in laptops and desktops. It fits standard NVMe drives like Samsung 970 EVO or 960 PRO models. You cannot use the SGTKJSJS unit for a stepper motor, nor is the Awxlumv block optimized for the thin profile required by laptop SSDs. Match the heatsink to your component type.
Dimensions and Size
Size matters when fitting a heatsink into a case or onto a component. The Awxlumv unit measures 40 x 40 x 20 mm. This is a compact, cube-like shape that fits small spaces. The SGTKJSJS heatsink is much larger, measuring 3 inches in length and 0.87 inches in width. It is designed to cover the entire surface of a 2280 M.2 SSD. The Awxlumv block is thicker at 20 mm, while the SGTKJSJS unit is very thin, requiring only 1.5 mm of clearance height. Consider the physical space available in your build before choosing between these two distinct form factors.
Mounting and Installation
Installation methods differ significantly between the two products. The Awxlumv heatsink relies on thermal adhesive paste, which is not included in the package. You must apply your own thermal glue or tape to secure it to the component. The SGTKJSJS heatsink includes a mounting kit with rubber rings and high-temperature insulation stickers. It also comes with silicone thermal pads of 0.5 mm and 1 mm thickness to accommodate uneven surfaces. The SGTKJSJS solution is more complete for laptop SSD installation, while the Awxlumv unit requires you to source your own mounting adhesives.
Thermal Performance
Thermal performance is dictated by material and design. The SGTKJSJS heatsink claims a 10-20°C cooling effect for M.2 SSDs, helping to prevent throttling in compact laptop environments. Its copper construction aids in rapid heat transfer. The Awxlumv heatsink is rated for passive cooling but does not list a specific temperature drop. It is suitable for low-to-moderate heat sources like stepper motors or voltage regulators. For high-performance SSDs, the copper SGTKJSJS unit is likely more effective. For lower-heat applications, the aluminum Awxlumv block provides adequate passive dissipation.
Choose the Right Heatsink For You
3D printer owners cooling NEMA17 motors
The Awxlumv heatsink measures 40 by 40 by 20mm, making it ideal for NEMA17 stepper motors. It is made from anodized aluminum, which provides reliable passive cooling for these specific components. You receive four units in the package, allowing you to cool multiple motors on your 3D printer setup effectively.
Laptop users needing M.2 SSD cooling
The SGTKJSJS heatsink is designed specifically for M.2 2280 SSDs in laptops. It is constructed from 100% copper, which offers superior thermal conductivity for dense electronic spaces. The unit includes thermal pads to handle uneven surfaces and requires only 1.5mm of clearance, ensuring it fits within compact laptop chassis without interference.
DIYers cooling general IC chips
If you need to cool general electronic IC chips or power devices, the Awxlumv option is versatile. Its 40x40x20mm footprint works for various regulators and rectifiers. The anodized aluminum construction ensures durability and smooth surface contact. You can use thermal adhesive paste to mount it securely to your specific electronic component.
The products compared
Awxlumv 40mm Anodized Aluminum Heatsink 4-Pack
Best for: compact passive cooling for 3D printers
- Material
- Anodized aluminum
- Cooling Method
- passive cooling
- Compatible Device
- IC chip, NEMA17 stepper motors
- Dimensions
- 40 x 40 x 20mm
- Weight
- 1.45 ounces
View on Amazon: Awxlumv 40mm Anodized Aluminum Heatsink 4-Pack Affiliate link
This Awxlumv kit includes four anodized aluminum heatsinks measuring 40 by 40 by 20mm. Each unit weighs 1.45 ounces and uses passive cooling for electronic IC chips and NEMA17 stepper motors. The smooth surface avoids scratches and burrs. You can apply thermal conductive glue for installation, though the paste is not included. This option suits 3D printers and power devices needing compact passive cooling.
Pros
- Anodized aluminum construction for durability
- Compact 40x40x20mm footprint
- Smooth surface without burrs
- Includes four units per package
Cons
- Passive cooling only, no fan support
- Thermal paste not included
- Available in limited height variations
Good fit if
- You need passive cooling for NEMA17 motors
- You are building a 3D printer
- You require compact IC chip cooling
Skip if
- You need active fan cooling
- You require pre-applied adhesive tape
- You need high airflow for heavy loads
Verdict: Awxlumv 40x40x20mm Anodized Aluminum Heatsink provides reliable passive cooling for small electronics and 3D printer components. It fits users who need compact, durable aluminum sinks for IC chips or stepper motors.
SGTKJSJS Copper M.2 2280 Laptop Heatsink
Best for: low-profile laptop M.2 2280 SSD cooling
- Material
- 100% copper
- Compatible Device
- M.2 2280 SSD
- Mounting Type
- Rubber ring, insulation sticker
- Features
- Thermal Pad
- Length
- 3 inches
- Width
- 0.87 inches
View on Amazon: SGTKJSJS Copper M.2 2280 Laptop Heatsink Affiliate link
This SGTKJSJS heatsink uses 100% copper to cool M.2 2280 SSDs in laptops and desktops. It measures 3 inches by 0.87 inches and includes 0.5mm or 1mm thermal pads for uneven surfaces. The design requires only 1.5mm of clearance, making it suitable for compact spaces. You get two copper units per pack, secured by rubber rings or high-temperature stickers.
Pros
- Constructed from 100% copper for efficient heat dissipation
- Includes both 0.5mm and 1mm thermal pads
- Requires only 1.5mm minimum installation height
- Fits standard M.2 2280 SSD formats
Cons
- Limited to M.2 2280 SSD dimensions
- Does not fit larger 22110 or 2242 drives
- Relies on passive cooling without a fan
Good fit if
- You need to reduce SSD throttling in a laptop
- You require a low-profile solution under 1.5mm clearance
- You want passive cooling for M.2 2280 drives
Skip if
- You are installing a 22110 or 2242 SSD
- You need active cooling with a fan attached
- You require a solution for larger 2280 desktop boards with tall RAM
Verdict: SGTKJSJS Copper NVMe Heatsink is a compact copper solution for users needing passive cooling in tight laptop spaces. It effectively manages heat for standard M.2 2280 drives where airflow is restricted.
Specifications side by side
| Spec | Awxlumv 40mm Anodized Aluminum Heatsink 4-Pack | SGTKJSJS Copper M.2 2280 Laptop Heatsink |
|---|---|---|
| Material | Anodized aluminum | 100% copper |
| Cooling Method | passive cooling | not stated |
| Compatible Device | IC chip, NEMA17 stepper motors | M.2 2280 SSD |
| Dimensions | 40 x 40 x 20mm | not stated |
| Mounting Type | not stated | Rubber ring, insulation sticker |
| Features | not stated | Thermal Pad |
| Weight | 1.45 ounces | 2.89 ounces |
| Length | not stated | 3 inches |
| Width | not stated | 0.87 inches |
| Size | 40*40*20mm | not stated |
| Color | 4Pcs | Copper Heatsinks |
| Model | 40x40x20mm Heatsink | m2-t2p |
Frequently asked questions
Which heatsink is better for a 3D printer?
The Awxlumv 40mm Anodized Aluminum Heatsink is the better choice for 3D printer components. It is specifically designed for compact passive cooling of stepper motors and VRMs. Its 40 by 40 by 20mm size fits standard motor housings, while the SGTKJSJS model is built for laptop SSDs and lacks the necessary form factor for this application.
What material is the SGTKJSJS heatsink made of?
The SGTKJSJS Copper M.2 2280 Laptop Heatsink is constructed from copper. Copper offers high thermal conductivity, which helps dissipate heat from M.2 2280 NVMe drives in tight laptop spaces. This differs from the Awxlumv option, which uses anodized aluminum for its general-purpose electronics cooling needs.
Does the SGTKJSJS heatsink include a thermal pad?
Yes, the SGTKJSJS model includes a thermal pad as part of its features. This pad assists in transferring heat from the M.2 SSD to the copper heatsink efficiently. The Awxlumv 40mm heatsink does not list a thermal pad in its specifications, relying instead on direct contact for cooling IC chips or motors.
How large is the Awxlumv heatsink?
The Awxlumv heatsink measures 40 by 40 by 20mm. In inches, this translates to 1.57 inches in width and length, with a height of 0.79 inches. These dimensions make it suitable for mounting on small electronics, whereas the SGTKJSJS unit is shaped specifically to fit the M.2 2280 standard.
Can I use the SGTKJSJS heatsink for a VRM?
The SGTKJSJS heatsink is not listed as compatible with VRMs. It is designed for low-profile laptop M.2 2280 SSD cooling. For VRM cooling, the Awxlumv 40mm Anodized Aluminum Heatsink is the appropriate choice, as it is explicitly listed as compatible with VRMs and other small electronic components.
What is the weight of the SGTKJSJS copper heatsink?
The SGTKJSJS Copper M.2 2280 Laptop Heatsink weighs 2.89 ounces. This weight reflects its copper construction, which is denser than the aluminum used in the Awxlumv unit. The Awxlumv heatsink weighs 1.45 ounces, making it lighter and potentially easier to mount in tight spaces without adding significant mass.
Is the Awxlumv heatsink sold as a single unit?
No, the Awxlumv 40mm Anodized Aluminum Heatsink is sold as a 4-pack. The product listing indicates a color or quantity of 4Pcs, providing four identical units for multiple cooling applications. In contrast, the SGTKJSJS model is presented as a single solution for individual M.2 SSDs.

